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#pragma once
#include <util/generic/ptr.h>
#include <util/generic/vector.h>
#include <atomic>
namespace NMonitoring {
class TAtomicsArray {
public:
explicit TAtomicsArray(size_t size)
: Values_(new std::atomic<ui64>[size])
, Size_(size)
{
for (size_t i = 0; i < Size_; i++) {
Values_[i].store(0, std::memory_order_relaxed);
}
}
ui64 operator[](size_t index) const noexcept {
Y_VERIFY_DEBUG(index < Size_);
return Values_[index].load(std::memory_order_relaxed);
}
size_t Size() const noexcept {
return Size_;
}
void Add(size_t index, ui32 count) noexcept {
Y_VERIFY_DEBUG(index < Size_);
Values_[index].fetch_add(count, std::memory_order_relaxed);
}
void Reset() noexcept {
for (size_t i = 0; i < Size_; i++) {
Values_[i].store(0, std::memory_order_relaxed);
}
}
TVector<ui64> Copy() const {
TVector<ui64> copy(Reserve(Size_));
for (size_t i = 0; i < Size_; i++) {
copy.push_back(Values_[i].load(std::memory_order_relaxed));
}
return copy;
}
private:
TArrayHolder<std::atomic<ui64>> Values_;
size_t Size_;
};
}
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